–How many students are there in the classroom? --__________. They are all in the lab.
---He’s never been late for school, _________ he? ---_________. He always comes on time.
Some people won’t _______ the importance of their health until they lose it.
The police _________ the whole house but didn’t find any clues.
--- When_________ your English teacher _________ his hometown? --- He_________ for nearly two months.
This is _________ best film I have ever seen. This means I have never seen_________ better one.